Mark Kusters, 58, on Monday pleaded not guilty to first-degree intentional homicide in the shooting death of 42-year-old Richard Flynn of Saratoga. Kusters’ wife told police she was in a relationship with Flynn and that Kusters knew about the affair, according to court records.

Wood County Circuit Judge Greg Potter on Monday found there was enough evidence to believe Kusters committed the crime and bound Kusters over for trial. Three police officers testified at the preliminary hearing and arraignment, which did not reveal any significant new information about the case.

A group of people wore red T-shirts to Kusters' hearing that read "#JusticeForRickFlynn," Oct. 31, 2016.(Photo: Jonathan Anderson/USA TODAY NETWORK-Wisconsin)

The case against Kusters revolves around a shooting in the early morning hours of Sept. 15. Shortly before 1 a.m., Kusters and his wife saw Flynn looking through the front windows of their home on 78th Street South in Grand Rapids, court documents say. Kusters allegedly then got a shotgun and said he would kill Flynn.

Once outside, Kusters and Flynn exchanged words and Kusters fired a single round at Flynn, who crawled to a neighbor’s home for help, according to police.

The neighbor called 911 and when police officers arrived, they found Flynn lying on the neighbor’s back porch with a gunshot wound to his abdomen and chest.

Flynn was rushed by helicopter to Ministry Saint Joseph’s Hospital in Marshfield, where he later died from the gunshot wound.

Those involved in the shooting had been drinking, according to police. Flynn, Kusters' wife and the neighbor went to a bar earlier that night, the wife told police. Kusters also told jail booking officers that he had "a couple of beers that evening," and a deputy could smell alcohol on him, according to court documents.

Kusters is being held in the Wood County Jail on a $1 million cash bond.